Mold investment calculator

Calculate volume and get your mix recipe

What kind of mold?

Enter dimensions

cm
cm
cm
cm
cm
cm
cm³
Cottle volume —
Subtract model volume?

The model (also called the pattern) is the positive object inside the cottle. Subtract its volume so you don't make more than necessary.

cm³
g

Converted using Victory Brown wax specific gravity (0.93)

Your recipe

Cottle volume —
Model volume —
Net volume —

Your mix

How is this calculated?

Weights are calculated from net mold volume × 0.64 = water weight (g), with each ingredient scaled by its parts relative to water. Weights are approximate — enable Precision mode in Settings for decimal values.

Timers